Display panel and display device

Abstract

The embodiment of the application discloses a display panel and a display device. The display panel is provided with a third opening corresponding to a first sub-region on a black matrix layer, so that external light can be reflected by a reflecting structure through the third opening to form reflected light, thereby improving the light reflectivity of the first sub-region and reducing the risk of the first sub-region being dark in the off-screen and working states.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel and display device. Background Technology

[0002] In existing organic light-emitting diode (OLED) panel technology, the industry typically employs polarizer-less technology to reduce panel power consumption. However, because there is no polarizer to suppress the reflection of external light, the reflection on the panel surface is very severe under external light illumination.

[0003] When Pol-less technology and under-display camera (CUP) technology are combined, the panel has a light-transmitting area, a transition area around the light-transmitting area, and a display area around the transition area, corresponding to the area of ​​the camera. Both the transition area and the display area have black matrices to cover the metal traces, and the area of ​​the light-emitting pixels in the transition area is smaller than that in the display area. This results in the transition area appearing darker when the panel is off or in operation. Summary of the Invention

[0004] This application provides a display panel and display device that can reduce the risk of the panel being too dark in the transition area when the screen is off and when it is working.

[0005] This application embodiment provides a display panel, including a first display area and a second display area for configuring a photosensitive device; the display panel includes:

[0006] A plurality of first pixel driving circuits are disposed in the first display area and a plurality of second pixel driving circuits are disposed in the second display area. The first pixel driving circuits drive a first sub-pixel located in the first display area, and the second pixel driving circuits drive a second sub-pixel and a third sub-pixel located in the second display area. The second sub-pixel is disposed in a first sub-region that overlaps with the second pixel driving circuit, and the third sub-pixel is disposed in a second sub-region that does not overlap with the second pixel driving circuit.

[0007] The black matrix layer includes a first light-shielding portion arranged around a plurality of second sub-pixels and a plurality of second light-shielding portions arranged around the third sub-pixels;

[0008] There is a gap between adjacent second light-shielding parts, and adjacent first light-shielding parts are connected to each other.

[0009] Optionally, in some embodiments of this application, the display panel includes:

[0010] substrate;

[0011] A driving structure layer is disposed on the substrate;

[0012] A light-emitting layer is disposed on the side of the driving structure layer away from the substrate. The light-emitting layer includes a plurality of first sub-pixels and a plurality of second sub-pixels. The first sub-pixels are disposed in the first display area, and the second sub-pixels are disposed in the first sub-region.

[0013] A black matrix layer is disposed on the side of the light-emitting layer away from the substrate; the black matrix layer has a first opening, a second opening, and a third opening, the first opening being located in the first display area and corresponding to the first sub-pixel; the second opening and the third opening are disposed in the first sub-region, the second opening corresponding to the second sub-pixel, and the third opening being disposed outside the second opening; and

[0014] A color filter layer is disposed on the side of the light-emitting layer away from the substrate. The color filter layer includes a plurality of first color resists and a plurality of second color resists. The first color resists are disposed in the first display area and are disposed within a first opening. The second color resists are disposed in the first sub-region and are disposed within a second opening.

[0015] The display panel includes a reflective structure disposed on the side of the black matrix layer near the substrate, and the reflective structure is positioned directly opposite the third opening.

[0016] Optionally, in some embodiments of this application, the display panel further includes a touch electrode, which is disposed on the side of the light-emitting layer away from the substrate and correspondingly disposed in the first display area and the first sub-area. The black matrix layer blocks the touch electrode. The touch electrode includes a first touch trace, a second touch trace, a third touch trace, and a fourth touch trace. The first touch trace is wound around the outer periphery of the second opening, the second touch trace is wound around the outer periphery of the third opening, the third touch trace is connected between the first touch trace and the second touch trace, and the fourth touch trace is connected between two adjacent first touch traces.

[0017] Optionally, in some embodiments of this application, the reflective structure includes at least one of the multilayer conductive film layers between the substrate and the black matrix layer.

[0018] Optionally, in some embodiments of this application, the display panel further includes a cathode disposed on the side of the light-emitting layer away from the substrate, and the reflective structure includes a portion of the cathode corresponding to the third opening.

[0019] Optionally, in some embodiments of this application, the reflective structure includes traces formed within the driving structure layer, with a portion of the traces positioned opposite the third opening.

[0020] Optionally, in some embodiments of this application, the trace includes at least one of gate trace, source / drain trace, signal connection line, and transparent connection line.

[0021] Optionally, in some embodiments of this application, the display panel further includes an anode layer and a pixel definition layer, the anode layer being disposed on the side of the driving structure layer away from the substrate, the pixel definition layer being disposed on the side of the driving structure layer away from the substrate, and the pixel definition layer covering a portion of the anode layer; the reflective structure includes a reflective portion;

[0022] The anode layer includes an anode disposed on the same layer as the reflective portion, and the anode and the reflective portion are spaced apart; a pixel hole is formed on the pixel definition layer, the pixel hole exposes the anode, and the light-emitting layer is disposed in the pixel hole;

[0023] The orthographic projection of the reflective portion onto the plane of the substrate is located inside the orthographic projection of the outline of the third opening onto the plane of the substrate.

[0024] Optionally, in some embodiments of this application, the pixel definition layer is further provided with a contact hole, the contact hole exposes the reflective portion, and the cathode covers the pixel definition layer and is connected to the reflective portion through the contact hole.

[0025] Optionally, in some embodiments of this application, a microstructure is formed on the side of the reflective portion away from the substrate.

[0026] Optionally, in some embodiments of this application, a plurality of the third openings are arranged at intervals along the periphery of the second sub-region.

[0027] Optionally, in some embodiments of this application, in the first sub-region, the opening area of ​​the third opening decreases in the direction from the first display area to the second sub-region.

[0028] Optionally, in some embodiments of this application, the light-emitting layer includes a plurality of third sub-pixels, the third sub-pixels being disposed in the second sub-region; among the first sub-pixel, the second sub-pixel, and the third sub-pixel emitting the same color light, the light-emitting area of ​​the first sub-pixel is greater than the light-emitting area of ​​the second sub-pixel, and the light-emitting area of ​​the second sub-pixel is greater than or equal to the light-emitting area of ​​the third sub-pixel;

[0029] A fourth opening and a gap are provided on the black matrix layer of the second sub-region, with the fourth opening and the gap spaced apart; the gap surrounds the periphery of the fourth opening to allow external light to pass through; the fourth opening corresponds to the third sub-pixel.

[0030] The color filter layer includes a plurality of third color resists, which are disposed within the fourth opening.

[0031] Optionally, in some embodiments of this application, the second sub-pixel closest to the second sub-region is the first edge sub-pixel, and the third sub-pixel closest to the first sub-region is the second edge sub-pixel;

[0032] The black matrix layer includes a first light-blocking portion located in the first sub-region and a second light-blocking portion located in the second sub-region. The second light-blocking portion is correspondingly arranged around the outer periphery of the third sub-pixel. The edge of the first light-blocking portion near the second sub-region is the boundary between the second sub-region and the first sub-region.

[0033] In the first edge sub-pixel and the second edge sub-pixel that emit the same color light, the distance from the edge of the first edge sub-pixel to the boundary is less than or equal to the distance from the edge of the second edge sub-pixel to the edge of the second light-blocking portion.

[0034] Accordingly, this application also provides a display device, which includes a photosensitive device and a display panel as described in any of the above embodiments, wherein the photosensitive device is disposed on the back of the display panel and corresponds to the second display area.

[0035] In this embodiment of the application, the display panel has a third opening on the black matrix layer corresponding to the area of ​​the first sub-region, so that external light can pass through the third opening and be reflected by the reflective structure to form reflected light, thereby improving the light reflectivity of the first sub-region and reducing the risk of the first sub-region being too dark when the screen is off and when it is working. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a top view of the display panel provided in Embodiment 1 of this application;

[0038] Figure 2 yes Figure 1 Enlarged view of section F in the middle;

[0039] Figure 3 This is a cross-sectional view of the display panel provided in Embodiment 1 of this application;

[0040] Figure 4 yes Figure 2 Enlarged view of section P in the middle;

[0041] Figure 5 yes Figure 2 Enlarged view of section H in the middle;

[0042] Figure 6 This is a cross-sectional view of the display panel provided in Embodiment 2 of this application;

[0043] Figure 7 yes Figure 5 Enlarged view of the Q section;

[0044] Figure 8 This is a schematic diagram of the structure of the display device provided in the embodiments of this application.

[0045] Explanation: In the second sub-region A1, B represents the third sub-pixel of blue, R represents the third sub-pixel of red, and G represents the third sub-pixel of green; in the first sub-region A2, B represents the second sub-pixel of blue, R represents the second sub-pixel of red, and G represents the second sub-pixel of green; in the first display area A3, B represents the first sub-pixel of blue, R represents the first sub-pixel of red, and G represents the first sub-pixel of green. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0047] This application provides a display panel and a display device, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0048] Example 1

[0049] Please refer to Figure 1 , Figure 2 and Figure 3 This application provides a display panel 100, including a second sub-region A1, a first sub-region A2, and a first display area A3. The first display area A3 is disposed on at least one side of the second sub-region A1. The first sub-region A2 is disposed between the second sub-region A1 and the first display area A3. The second sub-region A1 is configured to correspond to an external photosensitive device. The display panel 100 includes a substrate 11, a driving structure layer 12, a light-emitting layer 13, a cathode 14, a black matrix layer 15, and a color filter layer 16.

[0050] A driving structure layer 12 is disposed on a substrate 11. A light-emitting layer 13 is disposed on the side of the driving structure layer 12 away from the substrate 11. The light-emitting layer 13 includes a plurality of first sub-pixels 131 and a plurality of second sub-pixels 132. The first sub-pixels 131 are disposed in a first display area A3. The second sub-pixels 132 are disposed in a first sub-region A2.

[0051] A black matrix layer 15 is disposed on the side of the light-emitting layer 13 away from the substrate 11. A first opening 151, a second opening 152, and a third opening 153 are formed on the black matrix layer 15. The first opening 151 is located in the first display area A3. The first opening 151 corresponds to the first sub-pixel 131. The second opening 152 and the third opening 153 are disposed in the first sub-region A2. The second opening 152 corresponds to the second sub-pixel 132. The third opening 153 is disposed outside the second opening 152.

[0052] The color filter layer 16 is disposed on the side of the light-emitting layer 13 away from the substrate 11. The color filter layer 16 includes a plurality of first color resists 161 and a plurality of second color resists 162. The first color resists 161 are disposed in the first display area A3. The first color resists 161 are disposed within the first opening 151. The second color resists 162 are disposed in the first sub-area A2. The second color resists 162 are disposed within the second opening 152.

[0053] The display panel 100 includes a reflective structure fs, which is disposed on the side of the black matrix layer 15 near the substrate 11. The reflective structure fs is positioned directly opposite the third opening 153.

[0054] It should be noted that in the prior art, because the light-emitting area per unit area in the first sub-region is smaller than that in the display area, for example, in a unit area, among sub-pixels emitting the same color light, the area of ​​the sub-pixels in the first sub-region is smaller than that in the display area; or in a unit area, the density of sub-pixels in the first sub-region is smaller than that in the display area; or in a unit area, among sub-pixels emitting the same color light, the area of ​​the sub-pixels in the first sub-region is smaller than that in the display area, and the density of sub-pixels in the first sub-region is smaller than that in the display area; therefore, when the screen is on or off, the first sub-region appears darker than the display area.

[0055] Therefore, in Embodiment 1 of this application, the display panel 100 has a third opening 153 on the black matrix layer 15 corresponding to the area of ​​the first sub-region A2, so that external light can pass through the third opening 153 and be reflected by the reflection structure fs to form reflected light. The reflected light is emitted from the third opening 153, which increases the light reflectivity of the first sub-region A2, thereby increasing the brightness of the first sub-region A2 and reducing the risk that the first sub-region A2 will be too dark when the screen is off and when it is working.

[0056] Optionally, the reflective structure fs includes at least one of the multilayer conductive film layers between the substrate 11 and the black matrix layer 15. That is, the reflective structure fs may include one conductive film layer, or two or more conductive film layers disposed in different layers from each other; the multilayer conductive film layers may include a cathode 14, an anode layer 18, a gate metal layer (first metal layer 122), a source / drain metal layer (second metal layer 124), a third metal layer 1211, or other transparent conductive film layers (126 and 127).

[0057] It should be noted that because the surface of the conductive film is smooth, it has the property of reflecting light.

[0058] In some embodiments, the reflective structure fs can also be a stacked structure of multiple transparent film layers between the substrate 11 and the black matrix layer 15, and the stacking interface of the multiple transparent film layers is a total reflective surface.

[0059] Optionally, the display panel 100 also includes a cathode 14 disposed on the side of the light-emitting layer 13 away from the substrate 11. The reflective structure fs includes the portion of the cathode 14 corresponding to the third opening 153.

[0060] The cathode 14 has a semi-reflective and semi-transparent property, and the cathode 14 is closest to the third opening 153. Therefore, the cathode 14 is used as part of the reflective structure fs. The light will not be excessively reflected on the cathode 14, which improves the visibility of the display.

[0061] It is understandable that, since the cathode 14 is a surface structure, the brightness of the first sub-region A2 can be adjusted by adjusting the size and number of the third opening 153 in this embodiment.

[0062] Optionally, the cathode 14 is made of at least one of Ag, Mg, Yb, Al, Ga, Cu, Au, and metal oxides. Optionally, the light-emitting area per unit area in the first sub-region A2 is smaller than the light-emitting area per unit area in the first display area A3.

[0063] The light-emitting layer 13 includes a plurality of third sub-pixels 133, which are disposed in the second sub-region A1.

[0064] The first sub-pixel 131 includes a red first sub-pixel, a green first sub-pixel, and a blue first sub-pixel. The second sub-pixel 132 includes a red second sub-pixel, a green second sub-pixel, and a blue second sub-pixel. The third sub-pixel 133 includes a red third sub-pixel, a green third sub-pixel, and a blue third sub-pixel.

[0065] Among the first sub-pixel 131, the second sub-pixel 132, and the third sub-pixel 133 that emit the same color of light, the light-emitting area of ​​the first sub-pixel 131 is greater than the light-emitting area of ​​the second sub-pixel 132, and the light-emitting area of ​​the second sub-pixel 132 is greater than or equal to the light-emitting area of ​​the third sub-pixel 133.

[0066] For example, the light-emitting area of ​​the first red sub-pixel 131 is greater than the light-emitting area of ​​the second red sub-pixel 132, and the light-emitting area of ​​the second red sub-pixel 132 is greater than or equal to the light-emitting area of ​​the third red sub-pixel 133.

[0067] A fourth opening 154 and a gap 155 are provided on the black matrix layer 15. The fourth opening 154 and the gap 155 are spaced apart and located in the second sub-region A1. The gap 155 surrounds the fourth opening 154 to allow external light to pass through. The fourth opening 154 corresponds to the third sub-pixel 133.

[0068] The color filter layer 16 includes a plurality of third color resists 163, which are disposed within the fourth opening 154.

[0069] In the first display area A3, a first color resist 161 is disposed above a first sub-pixel 131, and the two have the same color; in the first sub-area A2, a second color resist 162 is disposed above a second sub-pixel 132, and the two have the same color; in the second sub-area A1, a third color resist 163 is disposed above a third sub-pixel 133, and the two have the same color.

[0070] In some embodiments, the second sub-region A1 may not have a light-emitting layer 13 and / or a black matrix layer 15. That is, compared to embodiment one, the second sub-region A1 does not have a third sub-pixel 133 and / or a black matrix layer 15. For example, an opening may be formed in the second sub-region A1.

[0071] Optionally, multiple third openings 153 are arranged at intervals along the periphery of the second sub-region A1, so that the brightness of the first sub-region A2 tends to be uniform in the circumferential direction.

[0072] Optionally, in the first sub-region A2, the opening area of ​​the third opening 153 decreases in the direction from the first display area A3 to the second sub-region A1. This setting makes the first sub-region A2 have a gradual trend, which can appropriately reduce the opening ratio of the first sub-region A2.

[0073] Optionally, in some embodiments, the area of ​​the third opening 153 in the first sub-region A2 may also be equal.

[0074] Optionally, the shape of the third opening 153 can be circular, elliptical, polygonal, or other shapes.

[0075] Optionally, the center spacing between the first sub-pixels 131, the center spacing between the second sub-pixels 132, and the center spacing between the third sub-pixels 133 are equal to each other.

[0076] Please refer to Figure 4 Optionally, the second sub-pixel 132, which is closest to the second sub-region A1, is defined as the first edge sub-pixel W1. The third sub-pixel 133, which is closest to the first sub-region A2, is defined as the second edge sub-pixel W2.

[0077] The black matrix layer 15 includes a first light-blocking portion 15a located in the first sub-region A2 and a second light-blocking portion 15b located in the second sub-region A1. The second light-blocking portion 15b is correspondingly disposed around the outer periphery of a third sub-pixel 133. The edge of the first light-blocking portion 15a near the second sub-region A1 forms the boundary bj between the second sub-region A1 and the first sub-region A2.

[0078] In the first edge sub-pixel W1 and the second edge sub-pixel W2 that emit the same color light, the distance D1 from the edge of the first edge sub-pixel W1 to the boundary bj is less than or equal to the distance from the edge of the second edge sub-pixel W2 to the edge of the second light-blocking part D2.

[0079] This setting can improve the uniformity of the display effect when transitioning from the second sub-region A1 to the first sub-region A2.

[0080] Optionally, the display panel 100 further includes a touch electrode 17, which is disposed on the side of the light-emitting layer 13 away from the substrate 11, and is correspondingly disposed in the first display area A3 and the first sub-area A2. The black matrix layer 15 blocks the touch electrode 17.

[0081] Please refer to Figure 5 A touch electrode 17 includes a first touch trace 171, a second touch trace 172, a third touch trace 173, and a fourth touch trace 174.

[0082] The first touch trace 171 is wound around the outer periphery of the second opening 152. The second touch trace 172 is wound around the outer periphery of the third opening 153. The third touch trace 173 is connected between the first touch trace 171 and the second touch trace 172. The fourth touch trace 174 is connected between two adjacent first touch traces 171.

[0083] In other words, the touch electrode 17 is in the form of a grid. The grid traces of the touch electrode 17 are arranged to avoid the third opening 153.

[0084] Optional, please refer to Figure 3 The driving structure layer 12 includes multiple pixel driving circuits dr, with a first sub-pixel 131, a second sub-pixel 132, and a third sub-pixel 133 each corresponding to a pixel driving circuit dr. Each pixel driving circuit dr includes multiple thin-film transistors, capacitors, and signal lines. Optionally, the thin-film transistors can be top-gate, bottom-gate, or dual-gate types.

[0085] The second sub-region A1 does not have a pixel driving circuit (dr), while the first sub-region A2 and the display area A3 both have a pixel driving circuit (dr).

[0086] The first sub-region A2 is provided with a pixel driving circuit dr corresponding to the third sub-pixel 133. In this embodiment, the pixel driving circuit dr corresponding to the third sub-pixel 133 is transferred to the first sub-region A2 to improve the light transmittance of the second sub-region A1.

[0087] Furthermore, in the first sub-region A2, multiple pixel driving circuits (dr) can be clustered together in an island-like manner to form pixel driving islands, which saves layout space compared to dispersing the pixel driving circuits. Optionally, the multiple pixel driving islands are arranged along the periphery of the second sub-region A1.

[0088] Optionally, the first sub-region A2 may also be provided with a pixel driving circuit dr corresponding to drive the second sub-pixel 132. The display area A3 is provided with a pixel driving circuit dr corresponding to drive the first sub-pixel 131.

[0089] In this embodiment, the reflective structure fs also includes a trace 121 formed within the driving structure layer 12. A portion of the trace 121 is positioned opposite the third opening 153.

[0090] Since the surface of the trace 121 is relatively smooth, when some external light passes through the third opening 153 and the cathode 14 and radiates to the trace 121, some of the light will be reflected on the surface of the trace 121, thereby increasing the reflectivity of the first sub-region A2.

[0091] In some embodiments, compared to this embodiment, the reflective structure fs may not include the cathode 14 portion; that is, an opening is made in the cathode layer corresponding to the third opening, and a trace 121 is used to target the third opening 153 to achieve the effect of reflecting external light.

[0092] Optionally, the trace 121 includes at least one of the following: gate trace 12a, source / drain trace 12b, signal connection line 12c, and transparent connection line 12d. Examples include scan lines, common lines, data lines, power lines, layer-change lines, or connection lines.

[0093] In some embodiments, when the light reflection of the cathode 14 is appropriate, the trace 121 can be disposed corresponding to the outside of the third opening 153, that is, the traces of the drive structure layer 12 all avoid the third opening 153.

[0094] Optionally, the driving structure layer 12 includes a first metal layer 122, a semiconductor layer 123, a second metal layer 124, a planarization layer 125, a first transparent conductive layer 126, and a second transparent conductive layer 127.

[0095] A first metal layer 122 is disposed on the substrate 11. The first metal layer 122 includes a gate G and a gate trace 12a. The gate trace 12a and the gate G are made of the same material. The gate trace 12a and the gate G can be fabricated using a single photomask process.

[0096] The semiconductor layer 123 and the first metal layer 122 are disposed in different layers. The semiconductor layer 123 is disposed overlapping with the gate G.

[0097] The second metal layer 124 is disposed on the side of the first metal layer 122 and the semiconductor layer 123 away from the substrate 11. The second metal layer 124 includes a source electrode S, a drain electrode D, and a source-drain electrode line 12b. The source-drain electrode line 12b is made of the same material as the source electrode S. The source-drain electrode line 12b and the source electrode S can be fabricated using a single photomask process.

[0098] A planarization layer 125 is disposed on the side of the second metal layer 124 away from the substrate 11. A first transparent conductive layer 126 is disposed on the side of the planarization layer 125 away from the planarization layer 125. The first transparent conductive layer 126 includes signal connection lines 12c.

[0099] The second transparent conductive layer 127 is disposed on the side of the first transparent conductive layer 126 away from the substrate 11. The second transparent conductive layer 127 and the first transparent conductive layer 126 are disposed in different layers. The second transparent conductive layer 127 includes transparent connecting lines 12d.

[0100] A portion of at least one of the gate trace 12a, source-drain trace 12b, signal connection line 12c, and transparent connection line 12d is positioned opposite the third opening 153.

[0101] It should be noted that at least one of the gate trace 12a, source / drain trace 12b, signal connection line 12c, and transparent connection line 12d is positioned directly opposite the third opening 153. For example, one of the gate trace 12a, source / drain trace 12b, signal connection line 12c, and transparent connection line 12d may be positioned opposite the third opening 153, i.e., a single trace 121 may be used as a reflector to reflect external light; alternatively, two or three of the gate trace 12a, source / drain trace 12b, signal connection line 12c, and transparent connection line 12d may be positioned opposite the third opening 153, i.e., a combination of different traces 121 may be used as a reflector to reflect external light.

[0102] In addition, since the conductive film layer of the driving structure layer 12 has multiple layers, when the traces of different layers (12a, 12b, 12c and 12d) correspond to the third opening 153, a scattering effect will be formed, which will reduce excessive reflection and improve visibility.

[0103] Furthermore, this embodiment uses a top-gate type thin-film transistor as an example for illustration, but it is not limited to this.

[0104] The drive structure layer 12 also includes a buffer layer 128, a first insulating layer 129, a second insulating layer 1210, a third metal layer 1211, a third insulating layer 1212, a fourth insulating layer 1213, a fifth insulating layer 1214, and a sixth insulating layer 1215.

[0105] A buffer layer 128 is disposed on the substrate 11. A semiconductor layer 123 is disposed on the buffer layer 128. A first insulating layer 129 is disposed on the buffer layer 128 and covers the semiconductor layer 123. A first metal layer 122 is disposed on the first insulating layer 129. A second insulating layer 1210 is disposed on the first insulating layer 129 and covers the first metal layer 122. A third metal layer 1211 is disposed on the second insulating layer 1210. A third insulating layer 1212 is disposed on the second insulating layer 1210 and covers the third metal layer 1211. A second metal layer 124 is disposed on the third insulating layer 1212. A planarization layer 125 is disposed on the third insulating layer 1212 and covers the second metal layer 124. A fourth insulating layer 1213 is disposed on the planarization layer 125. A first transparent conductive layer 126 is disposed on the fourth insulating layer 1213. A fifth insulating layer 1214 is disposed on the fourth insulating layer 1213 and covers the first transparent conductive layer 126. The second transparent conductive layer 127 is disposed on the fifth insulating layer 1214. The sixth insulating layer 1215 is disposed on the fifth insulating layer 1214 and covers the second transparent conductive layer 127.

[0106] Optionally, the buffer layer 128 can be a single-layer structure or a multi-layer stacked structure. The semiconductor layer 123 can be made of silicon or metal oxide semiconductor materials. The materials of the first metal layer 122, the second metal layer 124, and the third metal layer 1211 can be one of gold, silver, copper, tungsten, molybdenum, iron, aluminum, and titanium, or alloys thereof. The first metal layer 122, the second metal layer 124, and the third metal layer 1211 can each be a single-layer structure or a multi-layer stacked structure.

[0107] The materials of the first transparent conductive layer 126 and the second transparent conductive layer 127 can be metal oxide materials such as indium tin oxide and indium zinc oxide, respectively.

[0108] Please continue to refer to Figure 3 The display panel 100 also includes an anode layer 18 and a pixel definition layer 19. The anode layer 18 is disposed on the side of the driving structure layer 12 away from the substrate 11. Specifically, the anode layer 18 is disposed on the sixth insulating layer 1215.

[0109] The pixel definition layer 19 is disposed on the side of the driving structure layer 12 away from the substrate 11. Specifically, the pixel definition layer 19 is disposed on the sixth insulating layer 1215. The pixel definition layer 19 covers a portion of the anode layer 18.

[0110] The anode layer 18 includes an anode 181. A pixel hole 191 is formed on the pixel definition layer 19. The pixel hole 191 exposes the anode 181. The light-emitting layer 13 is disposed within the pixel hole 191.

[0111] In this circuit, anode 181 is connected to transparent connecting line 12d, which is connected to signal connecting line 12c. Signal connecting line 12c is connected to pixel driving circuit dr.

[0112] In some embodiments, the anode 181 may be connected to the transparent connection line 12d, which is connected to the pixel driving circuit dr; or the anode 181 may be connected to the signal connection line 12c, which is connected to the pixel driving circuit dr.

[0113] Optionally, the display panel 100 may also include an encapsulation layer TFE, a protective layer PR, an optical adhesive OCA, and a cover plate CG.

[0114] A TFE encapsulation layer is disposed on the cathode 14. A black matrix layer 15 and a color filter layer 16 are disposed on the TFE encapsulation layer. A PR protective layer covers the black matrix layer 15 and the color filter layer 16. An OCA optical adhesive is disposed on the PR protective layer. A CG cover plate is disposed on the PR protective layer.

[0115] Example 2

[0116] Please refer to Figure 6 The difference between this second embodiment and the first embodiment is that in this second embodiment, the reflective part 182 is directly facing the third opening 153 to improve the reflectivity of the first sub-region A2. The portion of the wiring 121 can be directly facing the third opening 153 or can avoid the third opening 153.

[0117] In this second embodiment, the reflective part 182 is directly facing the third opening 153, and the wiring 121 avoids the third opening 153 as an example.

[0118] The reflective structure fs also includes a reflective part 182 disposed in the same layer as the anode 181, with the anode 181 and the reflective part 182 being disposed at intervals.

[0119] The orthographic projection of the reflective portion 182 onto the plane where the substrate 11 is located is located inside the orthographic projection of the outline of the third opening 153 onto the plane where the substrate 11 is located.

[0120] In this second embodiment, the reflector 182 is positioned corresponding to the third opening 153. When some external light passes through the third opening 153 and the cathode 14 and radiates to the reflector 182, it is reflected by the reflector 182 and exits through the third opening 153, thereby increasing the reflectivity of the first sub-region A2. In addition, compared to the first embodiment, the reflector 182 is positioned closer to the third opening 153, reducing the attenuation of light and thus increasing the brightness of the reflected light.

[0121] Furthermore, since the reflective part 182 has a high reflectivity, the cathode 14 is used in conjunction with the reflective part 182 to improve the overall reflectivity, thereby reducing the size of the third opening 153. With the size of the third opening 153 reduced, the length of the second touch trace 172 surrounding the third opening 153 can be reduced, thereby reducing the influence of the second touch trace 172 on the capacitance and resistance of the touch electrode 17.

[0122] Optionally, the reflector 182 and the anode 181 are made of the same material, and they can be formed using the same photomask.

[0123] Optionally, the reflective portion 182 includes a metallic reflective layer 18a. The material of the metallic reflective layer 18a may be silver.

[0124] The reflective portion 182 may further include a first metal oxide layer 18b and a second metal oxide layer 18c. A metal reflective layer 18a is disposed between the first metal oxide layer 18b and the second metal oxide layer 18c.

[0125] Optionally, the materials of the first metal oxide layer 18b and the second metal oxide layer 18c can each be transparent conductive materials such as indium tin oxide or indium zinc oxide.

[0126] Please refer to Figure 7 Optionally, a microstructure 18w is formed on the side of the reflective portion 182 away from the substrate 11. The microstructure 18w has a scattering effect, which causes external light to be diffusely reflected in the reflective portion 182, improving the uniformity of the reflected light and reducing the graininess.

[0127] The microstructure 18w can be formed on the metal reflective layer 18a, or on the first metal oxide layer 18b or the second metal oxide layer 18c.

[0128] In this embodiment, the pixel definition layer 19 may also have a contact hole 192. The contact hole 192 exposes the reflective portion 182, and the cathode 14 covers the pixel definition layer 19 and is connected to the reflective portion 182 through the contact hole 192.

[0129] The cathode 14 is connected to the reflector 182, which reduces the voltage drop of the cathode 14. In other words, the reflector 182 not only reflects external light, but also serves as an auxiliary cathode.

[0130] In this embodiment, the microstructure 18w is formed on the side of the reflective portion 182 away from the substrate 11. This arrangement not only achieves the effect of diffuse reflection, but also improves the stability of the connection with the cathode 14.

[0131] Optionally, the contact hole 192 is provided corresponding to the third opening 153 to save space.

[0132] Example 3

[0133] Please refer to Figure 8 This application also provides a display device 1000, which includes a photosensitive element 200 and a display panel 100 as described in any of the above embodiments. The photosensitive element 200 is disposed on the back side of the display panel 100 and corresponds to the second sub-region A1.

[0134] It should be noted that the structure of the display panel 100 of the display device 1000 in this embodiment is the same as or similar to the structure of the display panel 100 in Embodiment 1 or Embodiment 2; therefore, please refer to the above text for the description of the display panel 100, and it will not be repeated here.

[0135] In addition, the back side of the display panel 100 refers to the side opposite to the light-emitting surface of the display panel 100.

[0136] Optionally, the photosensitive device 200 can be a camera, a fingerprint recognition device, etc.

[0137] The display device 1000 of this application embodiment has a third opening 153 on the black matrix layer 15 corresponding to the area of ​​the first sub-region A2, so that external light can pass through the third opening 153 and be reflected by the cathode 14 to form reflected light, thereby improving the light reflectivity of the first sub-region A2 and reducing the risk that the first sub-region A2 will be too dark when the screen is off and when it is working.

[0138] The above provides a detailed description of a display panel and display device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display panel, comprising a first display area and a second display area for configuring a photosensitive device; characterized in that, The display panel includes: A plurality of first pixel driving circuits are disposed in the first display area and a plurality of second pixel driving circuits are disposed in the second display area. The first pixel driving circuits drive a first sub-pixel located in the first display area, and the second pixel driving circuits drive a second sub-pixel and a third sub-pixel located in the second display area. The second sub-pixel is disposed in a first sub-region that overlaps with the second pixel driving circuit, and the third sub-pixel is disposed in a second sub-region that does not overlap with the second pixel driving circuit. The black matrix layer includes a first light-shielding portion arranged around a plurality of second sub-pixels and a plurality of second light-shielding portions arranged around the third sub-pixels; There is a gap between adjacent second light-shielding parts, and adjacent first light-shielding parts are connected to each other.

2. The display panel according to claim 1, characterized in that, The area covered by the black matrix layer between adjacent third sub-pixels is smaller than the area covered by the black matrix layer between adjacent second sub-pixels.

3. The display panel according to claim 2, characterized in that, The transmittance of the first sub-region is less than that of the second sub-region.

4. The display panel according to claim 1, characterized in that, A third opening is provided on the black matrix layer, and the third opening is located in the first sub-region. The display panel includes a substrate and a reflective structure. The reflective structure is located on the side of the black matrix layer close to the substrate, and the reflective structure is positioned directly opposite the third opening.

5. The display panel according to claim 4, characterized in that, The reflective structure includes at least one of the multilayer conductive film layers between the substrate and the black matrix layer.

6. The display panel according to claim 5, characterized in that, The display panel further includes a light-emitting layer disposed on the substrate and a cathode disposed on the side of the light-emitting layer away from the substrate, and the reflective structure includes a portion of the cathode corresponding to the third opening.

7. The display panel according to claim 5 or 6, characterized in that, The display panel further includes a driving structure layer disposed on the substrate, and the reflective structure includes traces formed in the driving structure layer, with a portion of the traces facing the third opening.

8. The display panel according to claim 7, characterized in that, The traces include at least one of gate traces, source / drain traces, signal connection lines, and transparent connection lines.

9. The display panel according to claim 6, characterized in that, The display panel further includes an anode layer and a pixel definition layer. The anode layer is disposed on the side of the driving structure layer away from the substrate, and the pixel definition layer is disposed on the side of the driving structure layer away from the substrate. The pixel definition layer covers a portion of the anode layer. The reflective structure includes a reflective portion. The anode layer includes an anode disposed on the same layer as the reflective portion, and the anode and the reflective portion are spaced apart; a pixel hole is formed on the pixel definition layer, the pixel hole exposes the anode, and the light-emitting layer is disposed in the pixel hole; The orthographic projection of the reflective portion onto the plane of the substrate is located inside the orthographic projection of the outline of the third opening onto the plane of the substrate.

10. The display panel according to claim 9, characterized in that, The pixel definition layer is also provided with a contact hole, the contact hole exposes the reflective part, and the cathode covers the pixel definition layer and is connected to the reflective part through the contact hole.

11. The display panel according to claim 9, characterized in that, The reflective portion has a microstructure formed on the side away from the substrate.

12. The display panel according to claim 4, characterized in that, The display panel further includes touch electrodes, which are disposed on the side of the light-emitting layer away from the substrate, and the black matrix layer blocks the touch electrodes; the touch electrodes are disposed in the first display area and the second display area, wherein in the second display area, the touch electrodes are disposed only in the first sub-area.

13. The display panel according to claim 4, characterized in that, The plurality of the third openings are arranged at intervals along the periphery of the second sub-region.

14. The display panel according to claim 4, characterized in that, In the first sub-region, the opening area of ​​the third opening decreases in the direction from the first display area to the second sub-region.

15. The display panel according to claim 4, characterized in that, Among the first sub-pixel, the second sub-pixel, and the third sub-pixel that emit the same color of light, the light-emitting area of ​​the first sub-pixel is greater than the light-emitting area of ​​the second sub-pixel, and the light-emitting area of ​​the second sub-pixel is greater than or equal to the light-emitting area of ​​the third sub-pixel. The gap surrounds the periphery of the second light-shielding part and is used to allow external light to pass through.

16. The display panel according to claim 1, characterized in that, The second sub-pixel closest to the second sub-region is the first edge sub-pixel, and the third sub-pixel closest to the first sub-region is the second edge sub-pixel; The first light-shielding portion near the edge of the second sub-region forms the boundary between the second sub-region and the first sub-region. In the first edge sub-pixel and the second edge sub-pixel that emit the same color light, the distance from the edge of the first edge sub-pixel to the boundary is less than or equal to the distance from the edge of the second edge sub-pixel to the edge of the second light-blocking portion.

17. A display panel, comprising a first display area and a second display area for configuring a photosensitive device; characterized in that, The display panel includes: A plurality of first pixel driving circuits are disposed in the first display area and a plurality of second pixel driving circuits are disposed in the second display area. The first pixel driving circuits drive first sub-pixels located in the first display area and the second pixel driving circuits drive second sub-pixels located in the second display area. The second sub-pixels are disposed in a first sub-region that overlaps with the second pixel driving circuits. No sub-pixels and pixel driving circuits are disposed in the second sub-region of the second display area. The black matrix layer includes a first light-shielding portion disposed around a plurality of the second sub-pixels; Wherein, the adjacent first light-shielding parts are connected to each other, and the black matrix layer is not provided in the second sub-region of the second display area.

18. The display panel according to claim 17, characterized in that, The transmittance of the first sub-region is less than that of the second sub-region.

19. The display panel according to claim 17, characterized in that, A third opening is provided on the black matrix layer, and the third opening is located in the first sub-region. The display panel includes a substrate and a reflective structure. The reflective structure is located on the side of the black matrix layer close to the substrate, and the reflective structure is positioned directly opposite the third opening.

20. The display panel according to claim 19, characterized in that, The reflective structure includes at least one of the multilayer conductive film layers between the substrate and the black matrix layer.

21. The display panel according to claim 20, characterized in that, The display panel further includes a light-emitting layer disposed on the substrate and a cathode disposed on the side of the light-emitting layer away from the substrate, and the reflective structure includes a portion of the cathode corresponding to the third opening.

22. The display panel according to claim 20 or 21, characterized in that, The display panel further includes a driving structure layer disposed on the substrate, and the reflective structure includes traces formed in the driving structure layer, with a portion of the traces facing the third opening.

23. The display panel according to claim 22, characterized in that, The traces include at least one of gate traces, source / drain traces, signal connection lines, and transparent connection lines.

24. The display panel according to claim 21, characterized in that, The display panel further includes an anode layer and a pixel definition layer. The anode layer is disposed on the side of the driving structure layer away from the substrate, and the pixel definition layer is disposed on the side of the driving structure layer away from the substrate. The pixel definition layer covers a portion of the anode layer. The reflective structure includes a reflective portion. The anode layer includes an anode disposed on the same layer as the reflective portion, and the anode and the reflective portion are spaced apart; a pixel hole is formed on the pixel definition layer, the pixel hole exposes the anode, and the light-emitting layer is disposed in the pixel hole; The orthographic projection of the reflective portion onto the plane of the substrate is located inside the orthographic projection of the outline of the third opening onto the plane of the substrate.

25. The display panel according to claim 24, characterized in that, The pixel definition layer is also provided with a contact hole, the contact hole exposes the reflective part, and the cathode covers the pixel definition layer and is connected to the reflective part through the contact hole.

26. The display panel according to claim 24, characterized in that, The reflective portion has a microstructure formed on the side away from the substrate.

27. The display panel according to claim 19, characterized in that, The display panel further includes touch electrodes, which are disposed on the side of the light-emitting layer away from the substrate, and the black matrix layer blocks the touch electrodes; the touch electrodes are disposed in the first display area and the second display area, wherein in the second display area, the touch electrodes are disposed only in the first sub-area.

28. The display panel according to claim 19, characterized in that, The plurality of the third openings are arranged at intervals along the periphery of the second sub-region.

29. The display panel according to claim 19, characterized in that, In the first sub-region, the opening area of ​​the third opening decreases in the direction from the first display area to the second sub-region.

30. A display device, characterized in that, It includes a photosensitive device and a display panel as described in any one of claims 1-29, wherein the photosensitive device is disposed on the back side of the display panel and corresponds to the second display area.

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